1. Features

• The embedded wireless data transmission module based on LoRa spread spectrum technology uses the LoRa network to provide users with wireless data transmission functions.
• Oil field oil pipeline temperature, single well temperature of pumping wells, temperature monitoring and upper and lower limit alarms;
• Explosion-proof design: explosion-proof aluminum shell, circuit board system is intrinsically safe;
• Protection level: IP68, fully sealed waterproof design;
• The instrument can set parameters such as alarm enable, upper and lower limits, delay, dead zone, maximum range, minimum range, number of decimal places, upload frequency, acquisition frequency, change alarm, etc.
• LED indication: reset indication, configuration mode indication, network access indication, data collection indication;
• 4.5-digit LCD display: temperature data, battery capacity icon, upper and lower limit alarms, and other parameters.
• Adjustable installation direction: It can be connected to the on-site pipeline valve through a union or adapter, and the direction can be adjusted.
• This product has been widely used in the oil and gas Internet of Things industry.

2. Performance indicators

1. Working environment temperature: -40~70℃.
2. Ambient humidity: 0～95%RH, no condensation;
3. Protection grade: IP68;
4. Explosion-proof mark: Ex ib II C T4 Gb, explosion-proof certificate: CE18.2230X;
5. 供电：ER34615 型锂亚硫酰氯电池（执行标准：SJ52278/1），两节原电池并联，容量3.6V 38Ah；电池接插件HG-2P（母头：1脚正极、2脚负极）与仪表连接；电源电压范围，3.0V～3.6VDC；
6. Battery continuous working time: ≥1 year (temperature acquisition frequency 1 time/min, communication frequency 1 time/h);
7. 更换电池方式：打开仪表后盖，通过标准HG-2P接口快速更换；
8. Long-term stability: drift, ±0.1%FS/year;
9. Measuring performance: range, 0～150℃, 0～300℃, -50～500℃; accuracy, 0.5% FS; can be customized according to actual needs; in line with relevant technical standards of GB/T 28473.2 and JJF1183;
10. Temperature sensor: PT100 platinum resistor package, temperature overload capacity, 150%FS;
11. Process connection interface: Probe type process connection thread M20X1.5, patch sensor is installed with clamp, the clamp size can be customized, the clamp material is 304 stainless steel, the connection line length is greater than 1 meter, and it is connected with a metal hose.
12. Communication method: LoRa multiple frequency bands (433/470/780/868/915MHz);
13. Communication theoretical bandwidth: 6 levels adjustable (0.3, 0.6, 1.0, 1.8, 3.1, 5.5 Kbps)
14. Online debugging and setting function: It can debug and set the instrument through computer + wireless receiver without uninstalling online installation; the setting data content includes:

• Communication working parameters: network number, air rate;
• Measurement working parameters: alarm enable, upper and lower limits, delay, dead zone, maximum range, minimum range, decimal places, upload frequency, acquisition frequency, change alarm;

After the instrument is powered off, the setting data is retained;

15. Online upgrade: It can be realized by configuring the serial port and using a computer without uninstalling the installation.
16. Liquid crystal (LCD) display: LCD display area, length × width = 45 × 35mm, background color is green, display content includes real-time measurement value, temperature unit, instrument range, battery power, voltage, signal strength; real-time measurement value decimal point can be set, by default retaining 2 decimal places;
17. Instrument housing: Made of aluminum alloy, the housing seal (gasket) is silicone rubber, and the front and rear cover threads are coated with vaseline; the dial diameter is 60mm, and the exterior color is RAL5007;
18. Dimensions: length × width × height = 150 × 130 × 235 mm (MAX). (Excluding probe length)
19. Sampling interval: The sampling interval can be set from 1 to 60 minutes.
20. Sending interval: 5 to 1440 minutes.

Explosion-proof certification parameters

• Explosion-proof certificate number: CE18.2230X
• Explosion-proof mark: Ex ib ⅡC T4 Gb

4. Appearance structure and function introduction前面板LED：红色代表温度采集状态及睡眠到唤醒状态，前面板复位：通过磁铁，在壳体前盖正下方，磁铁往上对着复位箭头，稳定3-5秒移开磁铁，LED红色灯闪烁3次，液晶显示8888也同步闪烁三次，代表仪表复位成功，复位的主要目的是进入仪表修改内部参数，或者刷新一下当下的温度值，和重新刷新建立网络链接。                5.现场安装使用说明5.1.所有变送器经过数字化校准，不同的变送器间具备完全的一致性和互换性；5.2.在运输途中，所有的变送器电池是处于断开状态，在现场安装温度变送器，需要旋开表头后盖，将电池开关打开，要注意旋紧护套，防止漏水；5.3.管道上安装蜂窝网络式温度变送器（1）管道停运、泄压、泄空。在管道上开个比传感器探头盲管套外径稍大一点的孔；（2）将盲管套从开孔处垂直插入至管道底部处，然后沿孔一周密封焊接在管道上；（3）盲管套内注入导热油，约1/2管的容积；（4）温度传感器探头插入盲管套，调节好表头方向，以扳手将活接头旋紧，恢复管道输运。  5.4.此无线温度变送器安装完成后，可以通过按键或调试工装进行网络参数设置。5.5.变送器长期不使用的情况下，可以通过调试工装将温度变送器设置为睡眠模式，（变送器在出厂入库过程中，统一设置为睡眠模式或者关闭状态，现场需要调参激活才可以正常使用）。调试软件界面在线列表如下图： 6.注意事项                        6.1.本产品使用的电池型号为ER34615H-3.6V38Ah；禁止使用其它型号电池。6.2.产品天线外壳为塑料材质，有潜在静电电荷危险！使用中应避免摩擦！清洁时请用湿布擦拭！